1304472440 has 16 divisors (see below), whose sum is σ = 2935063080. Its totient is φ = 521788960.

The previous prime is 1304472431. The next prime is 1304472457. The reversal of 1304472440 is 442744031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16305866 + ... + 16305945.

Almost surely, 2^1304472440 is an apocalyptic number.

1304472440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304472440 is an abundant number, since it is smaller than the sum of its proper divisors (1630590640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1304472440 is a wasteful number, since it uses less digits than its factorization.

1304472440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32611822 (or 32611818 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 1304472440 is about 36117.4810860337. The cubic root of 1304472440 is about 1092.6430374746.

The spelling of 1304472440 in words is "one billion, three hundred four million, four hundred seventy-two thousand, four hundred forty".